Teppei just transferred into Kaimei Academy, and he's pressured to join the Sket-dan by his classmate, Bossun. Then, one day, Teppei is attacked by a mysterious masked paint chucker, "Paint Mask"!
Acting like that, it's a safe bet they've 
done something they oughta feel guilty about.
Apostaría a que han hecho algo 
de lo que sentirse culpables.
Apostaría a que han hecho algo 
de lo que sentirse culpables.
Olha como eles estão agindo.